All-electronic frequency stabilization of a DFB laser diode

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dc.contributor.authorAsmari, A.
dc.contributor.authorHodgkinson, Jane
dc.contributor.authorChehura, Edmon
dc.contributor.authorStaines, Stephen E.
dc.contributor.authorTatam, Ralph P.
dc.date.accessioned2017-06-13T10:54:36Z
dc.date.available2017-06-13T10:54:36Z
dc.date.issued2017-05-10
dc.description.abstractA laser diode’s junction voltage is a sensitive measure of its temperature and can be used in a thermal control feedback loop. To compensate for the temperature dependence of the laser’s internal resistance, we have measured the dynamic resistance, ∂V/∂I, by modulating the injection current and measuring the demodulated voltage. The junction voltage was thus controlled while operating at fixed DC injection current. Over an external temperature range of 15°C to 35°C, this stabilised the centre frequency (wavelength) of a 1651 nm DFB laser diode with a residual mean frequency shift of 60 MHz (0.5pm), less than the uncertainty on the centre frequency of 80 MHz (0.7 pm). Under the same conditions, conventional thermistor control gave a systematic wavelength shift of −8.4 GHz (−76 pm), and control of the uncompensated forward voltage gave a shift of 9.9 GHz (90 pm).en_UK
dc.identifier.citationAsmari A, Hodgkinson J, Chehura E, et al., (2017) All-electronic frequency stabilization of a DFB laser diode. Optics Express, Volume 25, Issue 10, May 2017, pp. 11679-11691en_UK
dc.identifier.cris17482139
dc.identifier.issn1094-4087
dc.identifier.urihttp://dx.doi.org/10.1364/OE.25.011679
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/12010
dc.language.isoenen_UK
dc.publisherOptical Society of Americaen_UK
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDiode lasersen_UK
dc.subjectLaser stabilizationen_UK
dc.subjectThermal effectsen_UK
dc.subjectSpectroscopy, diode lasersen_UK
dc.titleAll-electronic frequency stabilization of a DFB laser diodeen_UK
dc.typeArticleen_UK

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